How to fix Access to appconfig was denied. Please ensure the required role assignment is made for the identity running this task.

Question

The client secret key of an app on azure portal expired and was renewed. The service connection from azure devops to the azure portal was also recreated. The creator of the service connection is having the owner role as well as the App Configuration Data Reader role. But when we try to raise a PR on azure devops, the build pipeline fails at the stage of fetch config with the error below:

Access to 'https://dms-dev-app-config.azconfig.io/kv?key=ConnectionStrings%3AAppConfig&label=%00&api-version=1.0' was denied. Please ensure the required role assignment is made for the identity running this task.

Can't figure out what the issue is since the expected roles have already been assigned.

Any help would be greatly appreciated.

Thanks in advance.